Chemical Reaction Engineering A space velocity of 5 hr⁻¹ means that After every 5 hours, reactor is being filled with the feed Cent per cent conversion can be achieved in at least 5 hours A fixed conversion of a given batch of feed takes 5 hours Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour After every 5 hours, reactor is being filled with the feed Cent per cent conversion can be achieved in at least 5 hours A fixed conversion of a given batch of feed takes 5 hours Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering "A spherical porous catalyst particle of radius R is subjected to reactant A which reacts to form B by a zero order surface reaction A → B. Film mass transfer resistance is negligible and pore diffusion of A is rate controlling. The effectiveness factor of the catalyst is reported as 7/8. Which of the following statement is true?A. Inner catalyst core of radius R/8 does not participate in reaction." Inner catalyst core of radius 7R/8 does not participate in reaction Inner catalyst core of radius R/8 does not participate in reaction Inner catalyst core of radius R/2 does not participate in reaction Ffectiveness factor for a zero order reaction can not be 7/8 as it must always be 1 Inner catalyst core of radius 7R/8 does not participate in reaction Inner catalyst core of radius R/8 does not participate in reaction Inner catalyst core of radius R/2 does not participate in reaction Ffectiveness factor for a zero order reaction can not be 7/8 as it must always be 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a semi-batch reactor Residence time is constant Maximum conversion can be controlled Both the reactants flow counter-currently Velocity of reaction can be controlled Residence time is constant Maximum conversion can be controlled Both the reactants flow counter-currently Velocity of reaction can be controlled ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the chemical reaction X → Y, it is observed that, on doubling the concentration of 'X', the reaction rate quadruples. If the reaction rate is proportional to Cxn, then what is the value of 'n' ? 16 4 2 43834 16 4 2 43834 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst Porosity is very important Porosity is of less importance Internal surface area is utilised efficiently None of these Porosity is very important Porosity is of less importance Internal surface area is utilised efficiently None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The catalytic converter for conversion of SO₂ to SO₃ by contact process should have a feed with SO₂ content between 20-25% 12-15% 7-10% 2-5% 20-25% 12-15% 7-10% 2-5% ANSWER DOWNLOAD EXAMIANS APP
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